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1MRK 504 165-UEN Rev. K
Main menu /Test /Function status /Impedance Protection /PhaseSelection(PDIS, 21) /
FRPSPDIS:x .
3.
Repeat steps
33
4.
Repeat steps
to figure
11.4.6.2
Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
11.4.7
High speed distance protection zones, quadrilateral and mho
characteristic ZMFPDIS
Prepare the IED for verification of settings outlined in section
for test"
11.4.7.1
Function revision history
Document
revision
A
B
C
D
E
F
G
H
J
Transformer protection RET670
Commissioning manual
1
to
2
to find the operate values for the remaining test points according to figure
and table 28.
When the load encroachment characteristic is deliberately set very high in order not
to have an influence, then the test points 2 and 5 can be replaced by test point 7.
1
to
3
to find the operate value for the phase-to-phase fault in L1 — L2 according
34
and table 29.
in this chapter.
This under-impedance-based criterion is defined by the two setting parameters
XStart and RStart. These two settings are common for both Ph-Ph and Ph-Gnd
measurement loops. In order to ensure proper operation of the distance zones the
under-impedance based starting element shall be set in such a way to always cover
(i.e. be larger than) all used distance zones for both Ph-Ph and Ph-Gnd loops.
Product
History
revision
2.2.1
Impedance measurement and supervision added (ZMMXU).
2.2.1
-
2.2.2
-
2.2.3
-
2.2.3
-
2.2.4
-
2.2.4
-
2.2.4
Zone BU (Backup) is added. Now there are seven zones in total. Zone 2 direction and
directional blinders (ArgDir, ArgNegRes) are now settable. Setting tTauDC is added; a
parameter for optional fine tuning of performance.
Added new setting RStart, which limits the resistive reach of the phase selection outside
of the ArgLd sector. Changed setting name XLd to XStart.
2.2.5
Parallel line mutual coupling compensation feature based on the parallel line residual
current is added with new settings: EnaPar, INPRatio, R0MZ1, X0MZ1, R0MZ2, and
X0MZ2.
Load compensation and direction element are improved for earth faults without zero
sequence current condition.
This update is valid for all the previously released 2.2 products.
© 2017 - 2022 Hitachi Energy. All rights reserved
Testing functionality by secondary injection
GUID-DF1650F4-EC3E-402B-BE26-EF2EF1034237 v8
"Requirements"
and section
GUID-DD5F2758-15E5-496C-8F8E-93AA34B2ACAC v3
Section 11
M13906-301 v5
"Preparing
117
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